<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
    <script src="./js/vue.js"></script>
  </head>
  <body>
    <div id="root">
      <h1>姓名案例</h1>
      <input type="text" v-model="firstName" /><br /><br />
      <input type="text" v-model="lastName" /><br /><br />
      <span>全名: {{fullName()}}</span>
    </div>
    <script type="text/javascript">
      Vue.config.productionTip = false
      new Vue({
        el: '#root',
        data: {
          firstName: '张',
          lastName: '三',
        },
        methods: {
          fullName() {
            return this.firstName + '-' + this.lastName
          },
        },
      })
    </script>
  </body>
</html>
